[thirdparty/gcc.git] / gcc / config / gcn / gcn-hsa.h

/* Copyright (C) 2016-2021 Free Software Foundation, Inc.

   This file is free software; you can redistribute it and/or modify it under
   the terms of the GNU General Public License as published by the Free
   Software Foundation; either version 3 of the License, or (at your option)
   any later version.

   This file is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   for more details.

   You should have received a copy of the GNU General Public License
   along with GCC; see the file COPYING3.  If not see
   <http://www.gnu.org/licenses/>.  */

#ifndef OBJECT_FORMAT_ELF
 #error elf.h included before elfos.h
#endif

#define TEXT_SECTION_ASM_OP "\t.text"
#define BSS_SECTION_ASM_OP  "\t.bss"
#define GLOBAL_ASM_OP       "\t.globl\t"
#define DATA_SECTION_ASM_OP "\t.data\t"
#define SET_ASM_OP          "\t.set\t"
#define LOCAL_LABEL_PREFIX  "."
#define USER_LABEL_PREFIX   ""
#define ASM_COMMENT_START   ";"
#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section

#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
	    asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)

#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
  gcn_hsa_declare_function_name ((FILE), (NAME), (DECL))

/* Unlike GNU as, the LLVM assembler uses log2 alignments.  */
#undef ASM_OUTPUT_ALIGNED_COMMON
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGNMENT)	  \
 (fprintf ((FILE), "%s", COMMON_ASM_OP),			  \
  assemble_name ((FILE), (NAME)),				  \
  fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED ",%u\n",	  \
	   (SIZE) > 0 ? (SIZE) : 1, exact_log2 ((ALIGNMENT) / BITS_PER_UNIT)))

#define ASM_OUTPUT_LABEL(FILE,NAME) \
  do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)

#define ASM_OUTPUT_LABELREF(FILE, NAME) \
  asm_fprintf (FILE, "%U%s", default_strip_name_encoding (NAME))

extern unsigned int gcn_local_sym_hash (const char *name);

#define ASM_OUTPUT_SYMBOL_REF(FILE, X) gcn_asm_output_symbol_ref (FILE, X)

#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
  fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL)

#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
  fprintf (FILE, "\t.word .L%d\n", VALUE)

#define ASM_OUTPUT_ALIGN(FILE,LOG) \
  do { if (LOG!=0) fprintf (FILE, "\t.align\t%d\n", 1<<(LOG)); } while (0)
#define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG)	       \
  do {						       \
    if (LOG!=0)					       \
      fprintf (FILE, "\t.p2alignl\t%d, 0xBF800000"     \
	       " ; Fill value is 's_nop 0'\n", (LOG)); \
  } while (0)

#define ASM_APP_ON  ""
#define ASM_APP_OFF ""

/* Avoid the default in ../../gcc.c, which adds "-pthread", which is not
   supported for gcn.  */
#define GOMP_SELF_SPECS ""

/* Use LLVM assembler and linker options.  */
#define ASM_SPEC  "-triple=amdgcn--amdhsa "  \
		  "%:last_arg(%{march=*:-mcpu=%*}) " \
		  "-filetype=obj"
#define LINK_SPEC "--pie --export-dynamic"
#define LIB_SPEC  "-lc"

/* Provides a _start symbol to keep the linker happy.  */
#define STARTFILE_SPEC "crt0.o%s"
#define ENDFILE_SPEC   ""
#define STANDARD_STARTFILE_PREFIX_2 ""

/* The LLVM assembler rejects multiple -mcpu options, so we must drop
   all but the last.  */
extern const char *last_arg_spec_function (int argc, const char **argv);
#define EXTRA_SPEC_FUNCTIONS	\
    { "last_arg", last_arg_spec_function },

#undef LOCAL_INCLUDE_DIR

/* FIXME: Review debug info settings.
 *        In particular, EH_FRAME_THROUGH_COLLECT2 is probably the wrong
 *        thing but stuff fails to build without it.
 *        (Debug info is not a big deal until we get a debugger.)  */
#define PREFERRED_DEBUGGING_TYPE   DWARF2_DEBUG
#define DWARF2_DEBUGGING_INFO      1
#define DWARF2_ASM_LINE_DEBUG_INFO 1
#define EH_FRAME_THROUGH_COLLECT2  1
#define DBX_REGISTER_NUMBER(REGNO) gcn_dwarf_register_number (REGNO)
Commit	Line	Data
99dee823	1	/* Copyright (C) 2016-2021 Free Software Foundation, Inc.
5326695a AS	2
	3	This file is free software; you can redistribute it and/or modify it under
	4	the terms of the GNU General Public License as published by the Free
	5	Software Foundation; either version 3 of the License, or (at your option)
	6	any later version.
	7
	8	This file is distributed in the hope that it will be useful, but WITHOUT
	9	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	10	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	11	for more details.
	12
	13	You should have received a copy of the GNU General Public License
	14	along with GCC; see the file COPYING3. If not see
	15	<http://www.gnu.org/licenses/>. */
	16
	17	#ifndef OBJECT_FORMAT_ELF
	18	#error elf.h included before elfos.h
	19	#endif
	20
f062c3f1 AS	21	#define TEXT_SECTION_ASM_OP "\t.text"
f062c3f1 AS	22	#define BSS_SECTION_ASM_OP "\t.bss"
5326695a AS	23	#define GLOBAL_ASM_OP "\t.globl\t"
	24	#define DATA_SECTION_ASM_OP "\t.data\t"
	25	#define SET_ASM_OP "\t.set\t"
	26	#define LOCAL_LABEL_PREFIX "."
	27	#define USER_LABEL_PREFIX ""
	28	#define ASM_COMMENT_START ";"
	29	#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
	30
	31	#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
	32	asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
	33
	34	#undef ASM_DECLARE_FUNCTION_NAME
	35	#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
	36	gcn_hsa_declare_function_name ((FILE), (NAME), (DECL))
	37
	38	/* Unlike GNU as, the LLVM assembler uses log2 alignments. */
	39	#undef ASM_OUTPUT_ALIGNED_COMMON
	40	#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGNMENT) \
	41	(fprintf ((FILE), "%s", COMMON_ASM_OP), \
	42	assemble_name ((FILE), (NAME)), \
	43	fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED ",%u\n", \
	44	(SIZE) > 0 ? (SIZE) : 1, exact_log2 ((ALIGNMENT) / BITS_PER_UNIT)))
	45
	46	#define ASM_OUTPUT_LABEL(FILE,NAME) \
	47	do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
	48
	49	#define ASM_OUTPUT_LABELREF(FILE, NAME) \
	50	asm_fprintf (FILE, "%U%s", default_strip_name_encoding (NAME))
	51
	52	extern unsigned int gcn_local_sym_hash (const char *name);
	53
	54	#define ASM_OUTPUT_SYMBOL_REF(FILE, X) gcn_asm_output_symbol_ref (FILE, X)
	55
	56	#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
	57	fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL)
	58
	59	#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
	60	fprintf (FILE, "\t.word .L%d\n", VALUE)
	61
	62	#define ASM_OUTPUT_ALIGN(FILE,LOG) \
	63	do { if (LOG!=0) fprintf (FILE, "\t.align\t%d\n", 1<<(LOG)); } while (0)
	64	#define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG) \
	65	do { \
	66	if (LOG!=0) \
	67	fprintf (FILE, "\t.p2alignl\t%d, 0xBF800000" \
	68	" ; Fill value is 's_nop 0'\n", (LOG)); \
	69	} while (0)
	70
	71	#define ASM_APP_ON ""
	72	#define ASM_APP_OFF ""
	73
	74	/* Avoid the default in ../../gcc.c, which adds "-pthread", which is not
	75	supported for gcn. */
	76	#define GOMP_SELF_SPECS ""
	77
	78	/* Use LLVM assembler and linker options. */
f062c3f1	79	#define ASM_SPEC "-triple=amdgcn--amdhsa " \
5326695a AS	80	"%:last_arg(%{march=:-mcpu=%}) " \
5326695a AS	81	"-filetype=obj"
f062c3f1	82	#define LINK_SPEC "--pie --export-dynamic"
5326695a AS	83	#define LIB_SPEC "-lc"
	84
	85	/* Provides a _start symbol to keep the linker happy. */
	86	#define STARTFILE_SPEC "crt0.o%s"
	87	#define ENDFILE_SPEC ""
	88	#define STANDARD_STARTFILE_PREFIX_2 ""
	89
	90	/* The LLVM assembler rejects multiple -mcpu options, so we must drop
	91	all but the last. */
	92	extern const char last_arg_spec_function (int argc, const char *argv);
	93	#define EXTRA_SPEC_FUNCTIONS \
	94	{ "last_arg", last_arg_spec_function },
	95
	96	#undef LOCAL_INCLUDE_DIR
	97
	98	/* FIXME: Review debug info settings.
	99	* In particular, EH_FRAME_THROUGH_COLLECT2 is probably the wrong
	100	* thing but stuff fails to build without it.
	101	* (Debug info is not a big deal until we get a debugger.) */
	102	#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
	103	#define DWARF2_DEBUGGING_INFO 1
	104	#define DWARF2_ASM_LINE_DEBUG_INFO 1
	105	#define EH_FRAME_THROUGH_COLLECT2 1
eff23b79	106	#define DBX_REGISTER_NUMBER(REGNO) gcn_dwarf_register_number (REGNO)